publication . Article . 2007

intrasexual aggression in metridium senile

SAUL W. KAPLAN;
Open Access
  • Published: 23 Jan 2007 Journal: The Biological Bulletin, volume 165, pages 416-418 (issn: 0006-3185, eissn: 1939-8697, Copyright policy)
  • Publisher: University of Chicago Press
Abstract
The dioeceous anemone Metridium senile reproduces both sexually (in summer) and asexually (year round). Asexual reproduction yields genetically identical clones via longitudinal fission or pedal laceration. Clonemates may form large aggregates, ranked together in close order, and become aggressive against neighboring clones. Intercional aggression is frequently carried out with the use of hypertrophied ten tacles referred to as catch tentacles. The present study indicates that catch tentacles do not maintain clonal segregation, and do not serve as aggressive appendages against all nonclonemates. Laboratory pairings of nonclonemates and observations of their move...
Subjects
free text keywords: Coelenterata, biology.organism_classification, biology, Anatomy, Metridium, Asexual reproduction, Anemone, Appendage, Cnidaria, Sexual reproduction, Ecology, Tentacle
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